71839098994 has 24 divisors (see below), whose sum is σ = 118887041412. Its totient is φ = 32530904640.

The previous prime is 71839098977. The next prime is 71839099061. The reversal of 71839098994 is 49989093817.

It can be written as a sum of positive squares in 6 ways, for example, as 30375958369 + 41463140625 = 174287^2 + 203625^2 .

It is a super-2 number, since 2×71839098994² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1987197 + ... + 2023024.

Almost surely, 2^71839098994 is an apocalyptic number.

71839098994 is a deficient number, since it is larger than the sum of its proper divisors (47047942418).

71839098994 is a wasteful number, since it uses less digits than its factorization.

71839098994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4010302 (or 4010289 counting only the distinct ones).

The product of its (nonzero) digits is 35271936, while the sum is 67.

The spelling of 71839098994 in words is "seventy-one billion, eight hundred thirty-nine million, ninety-eight thousand, nine hundred ninety-four".